Now all we need is longer mobo's to support sli/tri and still be able to run other cards i.e. turner, ssd, audio or expansion cards. O, and we'll need taller cases to have more then 7-8 pci slots.

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You can already get (much) taller than standard cases, so you can just have two of these filling the bottom four slots of a standard ATX board (with suitably positioned PCI-E x16 slots) and you'll have the top three slots free for whatever you want